What is fun, and how do we have more of it?

What is fun? Are you having much fun? Does the thought of having fun fill you with disgust? Michael Foley, author of a new book on the subject Isn't This Fun?Investigating the Serious Business of Enjoying Ourselves endeavours to answer these questions. Host Hugh Linehan admits to treating the whole idea of "fun" with a healthy amount of suspicion, Michael assures Hugh he is not alone in this and after much research on the topic believes he has found core reasons for the basic human need for fun.